Hydrophilic urinary catheter having a water-containing sachet

ABSTRACT

A wetting apparatus ( 110 ) for wetting a hydrophilic urinary catheter ( 103 ) comprises a wetting receptacle ( 101 ) which defines a wetting fluid receiving area ( 102 ) for receiving the hydrophilic urinary catheter and a hydrophilic urinary catheter wetting fluid container ( 106 ) having a discharge outlet ( 126 ) movable from a closed position to an open position on application of a predetermined condition thereto to enable the wetting fluid to be discharged from the wetting fluid container. The wetting fluid container provided can be positioned in the wetting receptacle in an operational position in which at least the discharge outlet of the wetting fluid container is disposed within the bounds of the wetting receptacle, the wetting receptacle being so constructed and the wetting fluid container being so disposed relative to the wetting receptacle when in the operational position that application of the predetermined condition to the discharge outlet of the wetting fluid container when in the operational position enables the wetting fluid to be discharged into the wetting fluid receiving area for wetting of the hydrophilic urinary catheter.

BACKGROUND OF THE INVENTION

The present invention relates to wetting apparatus for wetting ofhydrophilic urinary catheters comprising a wetting receptacle whichdefines a wetting fluid receiving area which is adapted to receive ahydrophilic urinary catheter and a hydrophilic urinary catheter wettingfluid container having a discharge outlet movable from a closed positionto an open position on application of a predetermined condition theretoto enable the wetting fluid to be discharged from the wetting fluidcontainer into the wetting fluid receiving area for wetting of thehydrophilic urinary catheter. The present invention further relates to afluid container of a type which may be used in such apparatus.

Intermittent self-catheterisation is widely employed by patientssuffering from for example strictures or traumas in the urinary systemas well as by paralysed patients to enable the patients to live a nearlynormal home life. Urinary catheters supplied for intermittentself-catheterisation in general need to have a lubricant applied to theouter surfaces thereof to facilitate insertion into the urethra. Forexample, hydrophilic urinary catheters have a hydrophilic outer surfacecoating which should be wetted by a fluid such as water or saline for acertain time period prior to insertion thereof into the urethra of apatient for lubrication purposes.

Various methods for lubricating urinary catheters have been previouslyproposed, examples of which are given below.

Prior U.S. Pat. No. 5,209,726 makes known a self-lubricating urinarycatheter and a method for self-catherisation. The catheter has anannular lubricant reservoir surrounding an inner tube havingperforations. As the catheter is inserted into the urethra of a patientlubricant is forced from the reservoir into the inner tube and out intothe urethra through a discharge outlet in the catheter. Lubrication ofthe outer surface of the catheter therefore only takes place as thecatheter is being inserted into the urethra of the patient resulting inat least some initial discomfort for the patient on insertion of thecatheter.

Prior U.S. Pat. No. 3,967,728 makes known a catheter package comprisinga urinary catheter and a rupturable, lubricant containing pouch. Oneedge of the pouch is located within the package adjacent to the tip ofthe catheter and the seal at that edge is made so that it ruptures whenthe pouch is squeezed thereby to lubricate the tip of the catheter. Asonly the tip of the catheter is lubricated the patient will still sufferdiscomfort on insertion of the catheter into the urethra.

Prior UK patent application publication No. 2284764 makes known acatheter and urine collection bag assembly comprising (i) a catheterhaving a shaft with a rounded tip, a drainage aperture in the tip and aflared portion to the rear of the shaft, and (ii) a urine collection bagwithin which the catheter is disposed and which at a forward end isformable with an aperture which is sufficiently large to permit the tipand shaft of the catheter to pass through but small enough for theflared portion of the catheter to engage therewith to form a mechanicalseal against leakage of urine. Once the catheter has been extendedthrough the aperture it is ready to be inserted into the urethra of apatient. Urine is transported rearwardly through the catheter from thebladder of the patient for collection in the urine collection bag. It isdisclosed that a separate, burstable container containing a lubricioussubstance may be included within the urine collection bag forlubricating the catheter. No details are given, however, of theconstruction of the container nor of the disposition of the containerrelative to the catheter.

Applicant's prior International patent application publication No.WO86/06284 discloses a wetting and storage device for a hydrophilicurinary catheter. A wetting pocket is provided, closed at one end sothat it may be filled with a wetting liquid and a hydrophilic urinarycatheter is then introduced into the pocket for wetting thereof. Noliquid container, though, is provided in the device for releasingwetting liquid into the pocket immediately prior to use of the catheter.Wetting liquid for the pocket therefore has to be supplied separately bythe patient. This is inconvenient because a sterile supply of wettingliquid is not necessarily always on hand to the patient and there is amarked possibility of spillage of the wetting liquid.

The hitherto proposed lubricating apparatus for urinary cathetersdiscussed above have the drawback that they make no or inadequateprovision for lubricating hydrophilic urinary catheters. As an example,the lubricating arrangements made known in U.S. Pat. No. 3,967,728 andUK patent application publication No. 2284764 are for catheters ofnon-hydrophilic character, the lubricant therefore being a gel which isunsuited for lubricating a hydrophilic catheter. The prior lubricatingapparatus therefore fail to provide an integrated supply of hydrophilicurinary catheter wetting fluid let alone an integrated supply ofhydrophilic urinary catheter wetting fluid which on discharge results inwetting of the insertable length or substantially the insertable lengthof a hydrophilic urinary catheter prior to insertion of the catheterinto the urethra of a patient.

Patients using hydrophilic urinary catheters accordingly requireimproved means for lubricating the catheters. The present inventiontherefore proposes to address this requirement.

SUMMARY OF THE INVENTION

According to a first aspect of the invention there is provided a wettingapparatus for wetting a hydrophilic urinary catheter comprising awetting receptacle which defines a wetting fluid receiving area forreceiving a hydrophilic urinary catheter and a hydrophilic urinarycatheter wetting fluid container having a discharge outlet movable froma closed position to an open position on application of a predeterminedcondition thereto to enable the wetting fluid to be discharged from thewetting fluid container, the wetting fluid container being integratedwith the wetting receptacle in an operational position in which at leastthe discharge outlet of the wetting fluid container is disposed withinthe bounds of the wetting receptacle, the wetting receptacle being soconstructed and the wetting fluid container being so disposed relativeto the wetting receptacle when in the operational position thatapplication of the predetermined condition to the discharge outlet ofthe wetting fluid container when in the operational position enables thewetting fluid to be discharged into the wetting fluid receiving area forwetting of the hydrophilic urinary catheter and the wetting fluidreceiving area being adapted such that the insertable length orsubstantially the insertable length of the hydrophilic urinary catheteris wetted by the wetting fluid discharged into the wetting fluidreceiving area.

By “integrated” is meant that the wetting fluid container and wettingreceptacle are formed into a one-piece unit, that is to say, the wettingfluid container is supported on or by the wetting receptacle.

An “on tap” supply of lubricant for the hydrophilic urinary catheter istherefore available to the patient and the problem of possible spillageof the wetting fluid alleviated. Furthermore, an increased comfort oninsertion of the catheter into the urethra results due to the insertablelength or substantially the insertable length of the catheter beinglubricated prior to insertion.

According to a second aspect of the invention there is provided awetting apparatus for wetting a hydrophilic urinary catheter comprisinga wetting receptacle which defines a wetting fluid receiving area forreceiving a hydrophilic urinary catheter and a hydrophilic urinarycatheter wetting fluid container having a discharge outlet movable froma closed position to an open position on application of a predeterminedcondition thereto to enable the wetting fluid to be discharged from thewetting fluid container, the wetting fluid container being integrablewith the wetting receptacle in an operational position in which at leastthe discharge outlet of the wetting fluid container is disposed withinthe bounds of the wetting receptacle, the wetting receptacle being soconstructed and the wetting fluid container being so disposed relativeto the wetting receptacle when in the operational position thatapplication of the predetermined condition to the discharge outlet ofthe wetting fluid container when in the operational position enables thewetting fluid to be discharged into the wetting fluid receiving area forwetting of the hydrophilic urinary catheter. The problem of possiblespillage of the wetting fluid is also alleviated in this case andmanufacture, packaging and transport of the apparatus simplified.

In a preferred embodiment of the invention the wetting fluid is water ora saline solution.

In an embodiment of the invention hereinafter to be described thewetting fluid receiving area is an elongate pocket of length sufficientto accommodate at least the insertable length of the hydrophilic urinarycatheter and the wetting fluid container is adapted to containsufficient wetting fluid to fill the pocket to a level for wetting atleast the insertable length of the hydrophilic urinary catheter.

In a preferred embodiment of the invention hereinafter to be describedthe wetting receptacle is a urine collection bag, the elongate pocketforms the forward portion of the urine collection bag and presents anopen rear end and a weakened closed forward end which is removable uponapplication of a predetermined pressure thereto thereby to enable aportion of the hydrophilic urinary catheter comprising at least theinsertable length thereof to be projected through the forward end of thepocket after wetting thereof for insertion into the urethra of a patientand the urine collection bag further comprises a urine collectionchamber to the rear of the elongate pocket, the urine collection chamberhaving a forward end which is in fluid communication with the open rearend of the pocket and being adapted in use to collect urine transportedrearwardly through the hydrophilic urinary catheter after insertionthereof into the urethra of the patient.

A typical sterilising agent which could be used for sterilising thewetting apparatus of the invention is ethylene oxide. Moreover, thefluid in the fluid container would normally be sterile. For thesereasons, the wetting fluid container is preferably made of a materialwhich is impermeable or substantially impermeable to ethylene oxide aswell as the fluid contained therein. Non-limiting examples of materialssatisfying this condition when the fluid is water or saline arealuminium foil, poly(vinylidene chloride) or a metallised film such asmetallised poly(ethylene terepthalate).

In an embodiment of the invention hereinafter to be described thewetting fluid container is fully contained within the bounds of thewetting receptacle and may be permanently fixed to the inner surface ofthe wetting receptacle.

In an embodiment of the invention the wetting fluid container is anintegrally formed compartment of the wetting receptacle.

In an embodiment of the invention hereinafter to be described thewetting receptacle is formed of a flexible material and the dischargeoutlet is brought to the open position through application of apredetermined force to the wetting fluid container through the materialof the wetting receptacle.

In an embodiment of the invention hereinafter to be described thewetting receptacle is provided with an inlet which is in fluidcommunication with the wetting fluid receiving area and the wettingfluid container is integrable with the wetting receptacle in theoperational position by insertion of at least a forward portion thereofin the inlet, the forward portion of the wetting fluid containerpresenting the discharge outlet.

In an embodiment of the invention hereinafter to be described thewetting fluid container is integrable with the wetting receptacle in theoperational position through a friction fit between the wetting fluidcontainer and the inlet of the wetting receptacle.

According to a third aspect of the invention there is provided a fluidcontainer for use with a receptacle having an inlet and a fluidreceiving area in fluid communication with the inlet, the fluidcontainer comprising a forward portion which is adapted to be positionedin the inlet of the receptacle and comprises a discharge outlet movableon application of a predetermined condition thereto from a closedposition in which the fluid is retained in the fluid container to anopen position in which the fluid is dischargeable forwardly from theforward portion of the fluid container, the predetermined condition ableto be applied to the discharge outlet when the forward portion of thefluid container is positioned in the inlet to enable the fluid containedin the fluid container to be discharged into the fluid receiving area ofthe receptacle. The fluid container therefore alleviates the problem ofspillage on discharge of the contents into the fluid receiving area.

In an embodiment of the invention according to its third aspecthereinafter to be described the fluid container is for use with areceptacle whose fluid receiving area is adapted in use to receive ahydrophilic urinary catheter and the fluid container contains a fluidwhich on discharge into the fluid receiving area wets the hydrophiliccoating of the catheter.

In an embodiment of the invention hereinafter to be described the fluidcontainer comprises predetermined condition applying means for applyingthe predetermined condition to the discharge outlet to bring thedischarge outlet to the open position.

In an embodiment of the invention hereinafter to be described theforward portion of the fluid container is positioned in the inlet of thereceptacle when the fluid container is in the operational position, thefluid container comprises a rearward portion which in the operationalposition of the fluid container projects from the inlet of thereceptacle and the rearward portion comprises at least a part of thepredetermined condition applying means.

In an embodiment of the invention hereinafter to be described thedischarge outlet comprises an area of weakness in the material of theforward portion of the fluid container which on application of apredetermined force thereto is brought to the open position.

In an embodiment of the invention hereinafter to be described the atleast a part of the predetermined condition applying means comprised ofthe rearward portion of the fluid container is a tab which onapplication of a predetermined pulling force thereto causes thepredetermined force to be applied to the area of weakness in thematerial of the forward portion of the fluid container.

In an embodiment of the invention hereinafter to be described the areaof weakness in the material of the forward portion of the fluidcontainer is a tear line which is torn on application of thepredetermined pulling force to the tab. The predetermined conditionapplying means further comprises holding means for holding the fluidcontainer in the operational position against the action of thepredetermined pulling force applied to the tab.

In an embodiment of the invention hereinafter to be described thereceptacle is of a flexible material and the holding means is providedon the forward portion to be gripped by a user through the material ofthe receptacle when the fluid container is in the operational position.

In an embodiment of the invention hereinafter to be described theforward portion of the fluid container presents a forward edge, the tearline extends rearwardly from the forward edge, the tab is a first tabwhich extends rearwardly from the forward edge of the forward portion ona first side of the tear line and is of such dimensions that when thefluid container is in the operational position the first tab projectsfrom the inlet of the receptacle, the holding means for holding thefluid container in the operational position against the action of thepulling force applied to the first tab is a second tab which extendsforwardly from the forward edge on a second opposite side of the tearline and application of a predetermined rearward pulling force on thefirst tab relative to the second tab causes the tear line to tear andthe fluid to be dischargeable from the fluid container into the fluidreceiving area of the receptacle.

In embodiments of the invention hereinafter to be described the fluidcontainer takes the form of a sachet.

In an embodiment of the invention according to its third aspecthereinafter to be described the fluid container is adapted to beintegrated with the receptacle by friction fit in the inlet of thereceptacle to maintain the fluid container in the operational position.An integrated unit is thus obtained having the benefits of the apparatusaccording to the first and second aspects of the invention.

In an embodiment of the invention according to its third aspect thefluid container contains water or saline and is made of aluminium foil,poly(vinylidene chloride) or a metallised film such as metallisedpoly(ethylene terepthalate).

The present invention has the advantage of providing a safe, compact,sterile and disposable wetting apparatus for a hydrophilic urinarycatheter which is easy to handle. This is due to the provision of awetting fluid container component part which is adapted to cooperatewith a wetting receptacle component part of the apparatus so as to beable to release its contents into the wetting receptacle to wet ahydrophilic urinary catheter placed therein under clean conditions, thatis to say, without the need for touching of the catheter, fluid or innersurface of the wetting receptacle thereby avoiding or alleviating therisk of introducing contaminants.

BRIEF DESCRIPTION OF THE DRAWINGS

By way of example embodiments of the invention will now be describedwith reference to the accompanying drawings in which:

FIG. 1 shows a wetting apparatus according to a first embodiment of theinvention comprising a urine collection bag and a wetting fluidcontainer integrated therewith;

FIG. 2 shows a wetting apparatus according to a second embodiment of theinvention comprising a urine collection bag and an unopened wettingfluid sachet in accordance with the invention integrated therewith in anoperational position in the inlet of the urine collection bag;

FIG. 3 is an exploded view of the unopened sachet of the wettingapparatus shown in FIG. 2 in the operational position in the inlet ofthe urine collection bag;

FIG. 4 is a front view of the unopened sachet of the wetting apparatusshown in FIG. 2 in an extended configuration prior to insertion thereofinto the inlet of the urine collection bag to the operational position;

FIG. 5 is a side view of the unopened sachet shown in FIG. 4;

FIG. 6 is a perspective view of the unopened sachet of the wettingapparatus shown in FIG. 2 in a retracted configuration ready forinsertion into the inlet of the urine collection bag to the operationalposition;

FIG. 7 corresponds to FIG. 2 but with the wetting fluid sachet havingbeen opened; and

FIG. 8 corresponds to FIG. 3 but with the wetting fluid sachet havingbeen opened.

DETAILED DESCRIPTION

Referring first to FIG. 1, there is shown a wetting apparatus 10according to the invention comprising a urine collection bag 1 of atransparent flexible plastics material. The bag 1 presents at theforward end thereof an elongate pocket 2 of depth sufficient to receiveat least the insertable length of a hydrophilic urinary catheter 3. Theurine collection bag 1 further defines to the rear of the pocket 2 aurine collection chamber 12 which is in fluid communication with thepocket 2. Further rearwardly is an inlet 14 to the urine collection bag1 through which the hydrophilic urinary catheter 3 is able to beintroduced into the bag 1.

As can be seen, the catheter 3 comprises a flared rearward portion 16and an elongate shaft 18 which extends forwardly from the rearwardportion 16 and terminates in a rounded tip 4 at the forward end thereofThe catheter 3 is provided with a lumen (not shown) which extends froman open end in the rearward portion 16 to a drainage aperture 5 in thetip 4.

A container in the form of a sachet 6 is secured to the inner surface ofthe urine bag 1. The sachet 6 contains sterile water or saline or otherfluid suitable for wetting the hydrophilic urinary catheter 3 and ispierceable or otherwise openable, for example by applying a handpressure, so as to release substantially all of the water or salinecontained therein into the pocket 2 immediately prior to use of thecatheter 3.

Typically, the urine collection bag 1 with integrated sachet 6 and,where pre-packaged therewith, the catheter 3 will be sterilised usingethylene oxide. Since the sachet 6 contains sterile water or salinethere is no need for sterilising the contents of the sachet 6.Accordingly, the material of the sachet 6 is preferably impermeable toethylene oxide and water. Non-limiting examples of materials meetingthese requirements are poly(vinylidene chloride) (PVDC), aluminium foillaminates and metallised films, for example metallised poly(ethyleneterepthalate). Other sterilisation processes could of course be usedinstead, for example by irradiation in which case the fluid in thesachet 6 could be sterilised in situ at the same time as the rest of thecomponents of the apparatus 10.

The volume of the sachet 6 is sufficient to release such an amount ofwater or saline into the pocket 2 to enable wetting of the insertablelength of the catheter 3 immediately prior to use. By “insertablelength” is meant at least that length of the elongate shaft 18 which iscoated with a hydrophilic material, for example PVP, and inserted intothe urethra of the patient. Typically, this will be 80-140 mm for afemale patient and 200-350 mm for a male patient.

The holding time of the catheter 3 in the pocket 2 may vary within abroad range but will typically amount to at least 30 seconds.

The location of the sachet 6 inside the bag 1 is not critical as long asthe sachet 6 releases its contents into the pocket 2. It is preferred,though, that the sachet 6 be disposed as close to the open end of thepocket 2 as possible. In this embodiment the sachet 6 is permanentlyfixed in position in the urine collection bag 1, for example by adhesionto the bag 1. It will be appreciated, however, that the sachet 6 couldin fact be freely movable in the bag 1. The fundamental point is thatthe sachet 6 is within the bounds of the bag 1 so that the twocomponents form an integrated unit.

In use, the catheter 3 is introduced into the bag 1 through the inlet 14and the elongate shaft 18 manoeuvred into the pocket 2 as shown. Theinlet 14 is then sealed, for example by tying a knot in the materialdefining the inlet 14 or by clamping the inlet 14 with a clamp. Thesachet 6 is then opened, for example by applying a pressure theretothrough the material of the bag 1, to release the wetting fluid into thepocket 2 and the catheter 3 left to soak for a predetermined duration inthe wetting fluid to wet the hydrophilic outer surface thereof

Alternately, the bag 1 may be provided with a closed end in place of theinlet with the catheter 3 pre-packaged inside the bag 1. An inlet 14 ispreferred, though, where ethylene oxide is the sterilising agent as thisprovides a pathway for the ethylene oxide to enter and exit the insideof the bag 1.

After wetting of the catheter 3 for the predetermined duration, the bag1 is turned upside down and the forwardmost portion of the pocket 2 tornoff. The elongate shaft 18 of the catheter 3 is then manoeuvred throughthe opening in the forward end of the pocket 2 and into the urethra ofthe patient until the flared rearward portion 16 forms a mechanical sealconnection with the opening. There is therefore no need to directlyhandle the catheter 3 for insertion thereof into the urethra which is toadvantage as the outer surface of the catheter 3 will be slippery due tothe wetting procedure and therefore difficult to grip and furthermorebecause the possibility of contamination of the catheter 3 at this stageis avoided.

Urine in the bladder of the patient is transported rearwardly throughthe lumen of the catheter 3 into the urine collection chamber 12. Thecatheter 3 is manoeuvred back inside the bounds of the bag 1 and theopen end of the pocket 2 closed off for example by tying a knot with thematerial defining the pocket 2 or clamping the pocket 2 with a clamp. Anopening can then be made in the urine collection chamber 12 for thecollected urine to be poured away after which the bag 1 can be disposedof.

Turning now to FIGS. 2 and 3 of the drawings, there is shown analternative wetting apparatus 110 according to the present invention.The wetting apparatus 110 comprises a urine collection bag 101 of aflexible transparent plastics material which corresponds to the urinecollection bag 1 of the wetting apparatus 10 hereinbefore described withreference to FIG. 1 of the drawings. That is to say, the urinecollection bag 101 has a downwardly extending elongate pocket 102 at theforward end, a urine collection chamber 112 rearwardly of and in fluidcommunication with the elongate pocket 102 and an inlet 114 to the bag101 spaced further rearwardly.

Again as in the wetting apparatus 10 hereinbefore described withreference to FIG. 1, a hydrophilic urinary catheter 103 having a flaredrearward portion 116, an elongate shaft 118 projecting forwardly fromthe rearward portion 116 and an open-ended lumen (not shown) whichextends from the rear end of the rearward portion 116 to a drainageaperture 105 in the rounded tip 104 at the forward end of the catheter103 is able to be inserted into the urine collection bag 101 through theinlet 114 such that preferably at least the insertable length of thecatheter 103 is received in the pocket 102.

As can be seen more particularly by reference to FIG. 3, a wetting fluidcontaining sachet 106 is inserted into the inlet 114 to an operationalposition in which it is held in place by a friction fit. The sachet 106has a forward portion 120 which in the operational position of thesachet 106 projects forwardly into the inlet 114 and a rearward portion122 which in the operational position projects rearwardly out of theinlet 114.

The sachet 106 is preferably made of aluminium foil, particularly whenethylene oxide is the sterilising agent for the apparatus 110 and thesachet contains sterile water or saline solution. Where ethylene oxideis the sterilising agent for the apparatus 110 the fit of the sachet 106in the inlet 114 is not so tight as to prevent ethylene oxide fromentering and exiting the inside of the bag 101 and sterilising the innersurface of the bag 101 and outer surfaces of the sachet 106 and catheter103. The wetting fluid is retained in the sachet 106 by peripheralsealing of the sachet 106 as shown.

Referring now to FIGS. 4 and 5, the forward portion 120 of the sachet106 presents a forward edge 124. Extending rearwardly from the forwardedge 124 is a tear line 126. Projecting forwardly from the forward edge124 of the sachet 106 to one side of the tear line 126 is a first tab128. On the other side of the tear line 126 there is provided anelongate second tab 130 shown here in an extended position in which thesecond tab 130 projects forwardly from the forward edge 124.

As shown in FIG. 6, the elongate second tab 130 is movable about theforward edge 124 back on its self from the extended position shown inFIGS. 4 and 5 to a retracted position in which the second tab 130extends rearwardly from the forward edge 124. When the second tab 130 isin the retracted position the sachet 106 is inserted into the inlet 114to the operational position shown in FIGS. 2 and 3.

Returning now to FIGS. 2 and 3, it can be seen that the dimensions ofthe second tab 130 are such that when the sachet 106 is in theoperational position a pulling portion 132 of the second tab 130projects rearwardly from the inlet 114 of the urine collection bag 101and forms a part of the rearward portion 122 of the sachet 106.

In FIGS. 7 and 8 there is shown the operation of the sachet 106 torelease the contents of the sachet 106 into the pocket 102 to wet thehydrophilic outer coating of the catheter 103. The user grips the firsttab 128 through the flexible transparent plastics material of the bag101 and then pulls rearwardly on the pulling portion 132 of the secondtab 130 which projects from the inlet 114 to cause the tear line 126 tobe torn and the wetting fluid to be released into the pocket 102 to wetthe catheter 103. Preferably, the sachet 106 contains sufficient wettingfluid for the pocket 102 to be filled to a level which results in theinsertable length of the catheter 103 being wetted.

After release of the wetting fluid into the pocket 102 the sachet 106 isremoved from the bag 101 and disposed of. The bag 101 and catheter 103are then utilised in the manner hereinabove described for the wettingapparatus 10 shown in FIG. 1.

If need be, the bag 101 can be a closed bag with the sachet 106 andcatheter 103 pre-packaged within the bag 101. In this instance, theconstruction of the bag 101 is such that the sachet 106 can be opened inthe aforementioned manner through the material of the bag 101.

The wetting apparatus 110 described hereinabove with reference to FIGS.2 to 8 has the advantage of inter alia (i) being environmentallyfriendly in the sense that where the sachet 106 is made of Al foil thesachet is able to be disposed of separately from the bag 101 thusfacilitating recycling of the Al foil; and (ii) having a sachet 106which can better withstand the cyclical pressures which are typicallyexerted on wetting apparatus when packaged and subjected to asterilising process as a consequence of the sachet 106 not having to beopened through application of a direct pressure thereto through thematerial of the bag 101 in which case a significantly weakened sachetedge would be required as a high pressure could not be applied throughthe bag 101 without damaging the bag 101.

In the exemplary embodiments hereinabove described with reference to theFigures of drawings the supply of wetting fluid for wetting of thehydrophilic urinary catheter takes the form of a separate sachetintegrated into the wetting receptacle. It will be appreciated by thoseversed in the art that the supply could also take the form of anintegrally formed chamber in the material of the wetting receptaclewithout departing from the spirit of the invention.

What is claimed is:
 1. A wetting apparatus for wetting a hydrophilicurinary catheter prior to use comprising: a wetting receptacle whichdefines a wetting fluid receiving area, a urinary catheter having ahydrophilic outer surface on at least an insertable length of thecatheter arranged in said receptacle, and a wetting fluid containerhaving a discharge outlet movable from a closed position to an openposition on application of a predetermined condition thereto to enablethe wetting fluid to be discharged from the wetting fluid container,wherein: the wetting fluid container is integrated with the wettingreceptacle; at least the discharge outlet of the wetting fluid containeris disposed within the bounds of the wetting receptacle; the dischargeoutlet of the wetting fluid container is in fluid communication with thewetting fluid receiving area; and an application of the predeterminedcondition to the discharge outlet of the wetting fluid container enablesthe wetting fluid to be discharged into the wetting fluid receiving areaand, thereby, to wet the at least insertable length of the hydrophilicurinary catheter.
 2. The wetting apparatus according to claim 1, whereinthe wetting fluid receiving area is an elongate pocket accommodating theinsertable length of the hydrophilic urinary catheter and the wettingfluid container contains sufficient wetting fluid to fill the elongatepocket to a level for wetting at least the insertable length of thehydrophilic urinary catheter.
 3. The wetting apparatus according toclaim 2, wherein the wetting receptacle is a urine collection bag, andthe elongate pocket forms a forward portion thereof.
 4. The wettingapparatus according to claim 3, wherein the urine collection bag furthercomprises a urine collection chamber to the rear of the elongate pocket,said urine collection chamber having a volume greater than the volume ofthe elongate pocket.
 5. The wetting apparatus according to claim 4,wherein the elongate pocket of the urine collection bag presents an openrear end and a weakened closed forward end which is removable uponapplication of a predetermined pressure thereto thereby to enable aportion of the hydrophilic urinary catheter comprising at least theinsertable length thereof to be projected through a forward end of theelongate pocket after wetting thereof for insertion into the urethra ofa patient, and that the urine collection chamber having a forward endwhich is in fluid communication with the open rear end of the elongatepocket and being adapted in use to collect urine transported rearwardlythrough the hydrophilic urinary catheter after insertion thereof intothe urethra of the patient.
 6. The wetting apparatus according to claim1, wherein the wetting fluid container is made of aluminum foil,poly(vinylidene chloride) or a metallicized film.
 7. The wettingapparatus according to claim 6, wherein the metallized film comprisesmetallized poly(ethylene terephthalate).
 8. The wetting apparatusaccording to claim 1, wherein the wetting receptacle is formed of aflexible material and that the discharge outlet of the wetting fluidcontainer is able to be brought to the open position through applicationof a predetermined force to the wetting fluid container through thematerial of the wetting receptacle.
 9. The wetting apparatus accordingto claim 1, wherein the wetting fluid container takes the form of asachet.
 10. The wetting apparatus according to claim 1, wherein thewetting fluid is water or a saline solution.
 11. The wetting apparatusaccording to claim 10, wherein the wetting fluid container is made of amaterial which is impermeable to ethylene oxide and water or salinesolution.
 12. The wetting apparatus according to claim 1, wherein thewetting fluid container is integrated with the wetting receptacle in areleasably secured manner.
 13. The wetting apparatus according to claim12, wherein the wetting receptacle is provided with an inlet which is influid communication with the wetting fluid receiving area and that thewetting fluid container is releasably secured in the inlet of thewetting receptacle by insertion of at least a forward portion thereof inthe inlet, the forward portion of the wetting fluid container presentingthe discharge outlet.
 14. The wetting apparatus according to claim 13,wherein the wetting fluid container is releasably secured in the inletof the wetting receptacle through a friction fit between the wettingfluid container and the inlet of the wetting receptacle.
 15. The wettingapparatus according to claim 14, wherein the wetting fluid containercomprises means for applying the predetermined condition to thedischarge outlet to bring the discharge outlet of the wetting fluidcontainer to its open position.
 16. The wetting apparatus according toclaim 15, wherein the forward portion of the wetting fluid container ispositioned in the inlet of the wetting receptacle, and that the wettingfluid container comprises a rearward portion which projects from theinlet of the wetting receptacle.
 17. The wetting apparatus according toclaim 16, wherein the rearward portion comprises at least a part of themeans for applying the predetermined condition.
 18. The wettingapparatus according to claim 17, wherein the discharge outlet comprisesan area of weakness in the material of the forward portion of thewetting fluid container which on application of a predetermined forcethereto is able to be brought to the open position.
 19. The wettingapparatus according to claim 18, wherein at least a part of the meansfor applying the predetermined condition comprised of the rearwardportion of the wetting fluid container is a tab which on application ofa predetermined pulling force thereto causes the predetermined force tobe applied to the area of weakness in the material of the forwardportion of the wetting fluid container.
 20. The wetting apparatusaccording to claim 19, wherein the area of weakness in the material ofthe forward portion of the wetting fluid container is a tear line whichis adapted to be torn on application of the predetermined pulling forceto the tab.
 21. The wetting apparatus according to claim 20, wherein themeans for applying the predetermined condition further comprises holdingmeans for holding the wetting fluid container against the action of thepredetermined pulling force applied to the tab.
 22. The wettingapparatus according to claim 21, wherein the wetting receptacle is of aflexible material and that the holding means is provided on the forwardportion to be gripped by a user through the material of the wettingreceptacle.
 23. The wetting apparatus according to claim 22, wherein theforward portion of the wetting fluid container presents a forward edge,that the tear line extends rearwardly from the forward edge, that thetab is a first tab which extends rearwardly from the forward edge of theforward portion on a first side of the tear line and being of suchdimensions as to project from the inlet of the wetting receptacle, thatthe holding means for holding the wetting fluid container against theaction of the pulling force applied to the first tab is a second tabwhich extends forwardly from the forward edge on a second opposite sideof the tear line and that application of a predetermined rearwardpulling force on the first tab relative to the second tab which causesthe tear line to tear and the wetting fluid to discharge from thewetting fluid container into the wetting fluid receiving area of thewetting receptacle.
 24. The wetting apparatus according to any one ofthe preceding claims, wherein the wetting fluid container is fullycontained within the bounds of the wetting receptacle.
 25. The wettingapparatus according to claim 24, wherein the wetting fluid container ispermanently fixed to an inner surface of the wetting receptacle.
 26. Thewetting apparatus according to claim 24, wherein the wetting fluidcontainer is an integrally formed compartment of the wetting receptacle.